Last updated: September 24, 2026
What affects the price
Building an ADU involves several moving parts that shape your total investment. The final figure depends heavily on whether you choose a prefab unit or a custom build from the ground up. Site conditions are another major factor; if your property requires extensive grading, utility trenching, or foundation work, costs will climb. You also have to consider your choice of finishes, like high-end appliances or custom cabinetry. Navigating local permit fees and impact assessments also adds to the total.
About this service
A professional company handles the heavy lifting, including architecture, engineering, permit submittals, and the actual construction labor. You need an experienced team when you want to ensure your unit is built to code, structurally sound, and completed on a predictable schedule. We act as your single point of contact, coordinating every trade and inspection so you aren't managing subcontractors yourself. We provide professional oversight from start to finish. Exact pricing confirmed free on the call.
Frequently asked in San Antonio
What are the disadvantages of ADUs in San Antonio?
How much does an ADU cost in Texas?
What are the rules for ADUs in San Antonio?
San Antonio has specific zoning and building codes for ADUs, covering things like setbacks, height limits, and parking requirements. These rules are designed to ensure ADUs integrate well into existing neighborhoods. Understanding these regulations is key to a successful project. We can discuss how these rules might apply to your specific San Antonio location.
Is an ADU allowed in my San Antonio neighborhood?
Most areas in San Antonio allow for ADUs, but specific regulations can vary by zoning district. It's important to check the local ordinances for your particular neighborhood. We can help you understand if an ADU is permitted on your lot. Call us to discuss your address and the possibilities.
Can I build an ADU on my property in San Antonio?
Whether you can build an ADU in San Antonio depends on your property's zoning, lot size, and existing structures. There are regulations regarding lot coverage and permissible uses. We can help you determine the feasibility for your specific property during a consultation. Let's schedule a time to review your options.
Also serving nearby: New Braunfels · Austin · Round Rock · Georgetown · Killeen
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of San Antonio — population 1,495,295; about 2,997 residents per square mile across 498.9 sq mi. ZIP codes covered include 78201, 78202, 78203, 78204, 78205, 78206, 78207, 78208.
Neighborhoods served in San Antonio: Olmos Park, Monte Vista, King William, The Pearl, Alamo Heights, Downtown — and every surrounding area.
Areas we serve
Browse by state, then city.
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